Re: [whatwg/streams] Add TransformStream tests for re-entrant strategies (#795)

ricea commented on this pull request.



> +      controller = c;
+    }
+  }, undefined, {
+    size() {
+      // This is triggered by controller.enqueue(). The queue is empty and there are no pending reads. pull() is called
+      // synchronously, allowing transform() to proceed asynchronously. This results in a second call to enqueue(),
+      // which resolves this pending read() without calling size() again.
+      readPromise = reader.read();
+      ++calls;
+      return 1;
+    },
+    highWaterMark: 0
+  });
+  reader = ts.readable.getReader();
+  const writer = ts.writable.getWriter();
+  let writeCalled = false;

Great, thanks. Done.

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